![]() Zonal architecture takes a new approach to vehicle electrical architecture. As a result, vehicles are starting to resemble data centers in their management of information and usage of communication systems on par with computer networks. Miniaturized electronics are replacing single-use ECU with embedded computing modules. Innovations in electronics are changing how vehicle systems will be connected. Sensors and data are transforming how vehicles are used, from the incorporation of Advanced Driver Assistance Systems (ADAS) and immersive in-car experiences to fully autonomous driving functionality. They share information with other road users, traffic control networks and even vehicle manufacturers. Modern vehicles collect information about their surroundings from a vast array of sensors and rapidly process this data. In traditional design, each feature is introduced as a new module, known as an electronic control unit (ECU), and the mass of wiring used to connect them is approaching the point of saturation. High-speed wireless connectivity integrates road users into a network, allowing them to take advantage of digital technology.Ĭurrent automotive design techniques are not robust or flexible enough to allow drivers to take advantage of the new digital environment. I'm more talking in generalities, and for less power-hungry cards like the 770, 780, or 280x/285.The digital age is transforming how vehicles interact with their surroundings, how they are made and how we use them. OP would probably be fine, given his PSU actually has enough power available on the 12v rail (granted, the 295x2 needs a ridiculous 61 amps 12v), and given that the adaptor or custom wire used appropriate diameter 18 AWG, or even 16 AWG in this case I'd be wary with such a disgustingly power-hungry card.Īgain, 61 amps is ridiculous and anybody with a 295x2 does not need to be skimping on their PSU. It's modular, and my custom cable plugs directly into the PSU OP's adapter clearly had some resistance at the connection, which you'd want to avoid.It's a great PSU with known-good capacitors.I used 18 AWG wire, while OP's wire clearly has "20 AWG" written on it.It's a single-rail PSU, which does matter for stuff like this every bit of that 450W is available on the 12V rail (37A).I made a custom 2x 8-pin cable and it runs perfectly with a GTX 780, but: I have a 450W SFX power supply that only comes with 1x 6-pin PCIe power connectors. Rule of thumb: if your PSU does not have enough connectors of its own for a GPU, it is not powerful enough to run that GPU. If he was trying to pull 33.333 amps through a 6-pin that's a no-go. TL DR: It's the amps that determine wire size. If the electric plant transmitted power strictly at 120v they would need wires many times thicker. The amperage is probably about the same as what is going through the pole to pole wires (though it may be different, idk). When they hit your neighborhood's transformer the voltage is dropped down to 120v for home use. This is because the wires running pole to pole are carrying thousands of volts but at a lower amperage. ![]() If you look at the power that supplies your house, you will see that the size of the wire coming from the transformer on the pole to your house is about the same as the wires running pole to pole. For instance, in a house a 15 amp circuit like a bedroom would probably use 14 gauge wire while a bathroom or kitchen on a 20 amp circuit would use 12 gauge. Wires are measured by their size (gauge) and the voltage isn't the main factor in deciding which gauge you use, it's the amperage.
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